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https://www.readbyqxmd.com/read/28213589/sh479-a-betulinic-acid-derivative-ameliorates-experimental-autoimmune-encephalomyelitis-by-regulating-the-th17-treg-balance
#1
Jing Li, Ji Jing, Yang Bai, Zhen Li, Roumei Xing, Binhe Tan, Xueyun Ma, Wenwei Qiu, Changsheng Du, Bing Du, Fan Yang, Jie Tang, Stefan Siwko, Mingyao Liu, Huaqing Chen, Jian Luo
CD4+ T helper cells, especially Th17 cells, combined with immune regulatory network dysfunction, play key roles in autoimmune diseases including multiple sclerosis (MS). Betulinic acid (BA), a natural pentacyclic triterpenoid, has been reported to be involved in anti-inflammation, in particular having an inhibitory effect on pro-inflammatory cytokine IL-17 and IFN-γ production. In this study, we screened BA derivatives and found a BA derivative, SH479, which had a greater inhibitory effect on Th17 differentiation...
February 17, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28213404/hydrogen-sulfide-alleviates-hypertensive-kidney-dysfunction-through-an-epigenetic-mechanism
#2
Gregory Weber, Sathnur Pushpakumar, Utpal Sen
Hypertension is a major risk factor for chronic kidney disease (CKD) and renal inflammation is an integral part in this pathology. Hydrogen sulfide (H2S) has been shown to mitigate renal damage through reduction in blood pressure and reactive oxygen species; however, the exact mechanisms are not clear. While several studies have underlined the role of epigenetics in renal inflammation and dysfunction, the mechanisms through which epigenetic regulators play role in hypertension are not well defined. In this study, we sought to identify if microRNAs are dysregulated in response to angiotensin-II (Ang-II) induced hypertension in the kidney and whether H2S donor, GYY 4137, could reverse the microRNA alteration and kidney function...
February 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28211191/cigarette-smoking-increases-bronchial-mucosal-il-17a-expression-in-asthmatics-which-acts-in-concert-with-environmental-aeroallergens-to-engender-neutrophilic-inflammation
#3
Leonard Quok Chean Siew, Shih-Ying Wu, Sun Ying, Christopher John Corrigan
BACKGROUND: Mild asthmatics who smoke cigarettes may develop unstable disease and neutrophilic infiltration of the airways, features more usually associated with severe asthmatic disease. The mechanisms giving rise to this response remain unclear. OBJECTIVE: To address the hypothesis that smoking increases bronchial mucosal production of IL-17A which acts on bronchial epithelial cells directly and in concert with other environmental stimuli to induce the production of IL-6 and neutrophil chemotaxins...
February 17, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28210632/increased-interleukin-17f-is-associated-with-elevated-autoantibody-levels-and-more-clinically-relevant-than-interleukin-17a-in-primary-sj%C3%A3-gren-s-syndrome
#4
Yuzhou Gan, Xiaozhen Zhao, Jing He, Xu Liu, Yun Li, Xiaolin Sun, Zhanguo Li
Th17 related immune response is pathogenic in primary Sjögren's syndrome (pSS). However, the role of IL-17F, one potent inflammatory member of IL-17 family cytokines in pSS, has not been specifically defined. We recruited one hundred and nine pSS patients and forty-two healthy controls and their serum levels of IL-17A and IL-17F were determined by multiplex cytokine assays. White blood cell, red blood cell, neutrophil, lymphocyte, IgM, IgG, C3, C4, RF, ANA, anti-SSA antibody, and anti-SSB antibody were measured by standard laboratory techniques...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28209207/recombinant-%C3%AE-actinin-subunit-antigens-of-trichomonas-vaginalis-as-potential-vaccine-candidates-in-protecting-against-trichomoniasis
#5
Yi-Ting Xie, Jiang-Mei Gao, Ya-Ping Wu, Petrus Tang, Geoff Hide, De-Hua Lai, Zhao-Rong Lun
BACKGROUND: Human trichomoniasis caused by Trichomonas vaginalis is one of the most common sexually transmitted diseases with more than 200 million cases worldwide. It has caused a series of health problems to patients. For prevention and control of infectious diseases, vaccines are usually considered as one of the most cost-efficient tools. However, until now, work on the development of T. vaginalis vaccines is still mainly focused on the screening of potential immunogens. Alpha-actinin characterized by high immunogenicity in T...
February 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28207826/changes-of-plasma-cytokines-and-chemokines-expression-level-in-nasopharyngeal-carcinoma-patients-after-treatment-with-definitive-intensity-modulated-radiotherapy-imrt
#6
Ya-Bin Jin, Guo-Yi Zhang, Kai-Rong Lin, Xiang-Ping Chen, Jin-Huan Cui, Yue-Jian Wang, Wei Luo
BACKGROUND: Potential clinical application values of certain cytokines and chemokines that participate in the process of tumor growth, invasion, and metastasis have been reported. However, there still lack of biomarkers for a great many of malignancy. This study identified cytokines or chemokines involved in the occurrence and development of nasopharyngeal carcinoma (NPC), which might be a biomarker for noninvasive early diagnosis. METHODS: The plasma levels of 19 cytokines and chemokines were detected by the luminex liquid array-based multiplexed immunoassays in 39 NPC patients before and after treatment by definitive intensity-modulated radiotherapy (IMRT)...
2017: PloS One
https://www.readbyqxmd.com/read/28207428/il-37-ameliorates-coxsackievirus-b3-induced-viral-myocarditis-by-modulating-the-th17-treg-immune-response
#7
Bang An, Xuefei Liu, Ge Li, Haitao Yuan
Myocarditis is a heterogeneous group of disorders defined by inflammation of the heart muscle with an excessively activated immune response. Numerous interventions have been investigated for the treatment of myocarditis while success is limited. Interleukin-37 (IL-37), a novel member of the IL-1 cytokine family, is a natural inhibitor of innate immunity associated with autoimmune diseases. However, the modulatory effect of IL-37 in myocarditis is unknown. In this study, we investigated the immunological regulation of IL-37 in the coxsackievirus B3-induced model of murine viral myocarditis...
February 14, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28202908/silencing-c-rel-in-macrophages-dampens-th1-and-th17-immune-responses-and-alleviates-experimental-autoimmune-encephalomyelitis-in-mice
#8
Hongling Zhang, Jiacheng Bi, Huqiang Yi, Tingting Fan, Qingguo Ruan, Lintao Cai, Youhai H Chen, Xiaochun Wan
Autoimmune Th1 and Th17 responses are critical for the development of central nervous system (CNS) pathology in experimental autoimmune encephalomyelitis (EAE), an animal model for human multiple sclerosis. Although macrophages play important roles in the development of Th1 and Th17 responses, whether modulating macrophage gene transcription can diminish Th1- and Th17 cell-induced CNS pathology is unclear. In this study, we successfully silenced the expression of the transcription factor c-Rel in macrophages of mice with EAE (including those infiltrating the CNS) using chemically modified c-Rel-specific siRNAs delivered by nanoparticles...
February 16, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28202084/aprepitant-limits-in-vivo-neuroinflammatory-responses-in-a-rhesus-model-of-lyme-neuroborreliosis
#9
Alejandra N Martinez, Amanda R Burmeister, Geeta Ramesh, Lara Doyle-Meyers, Ian Marriott, Mario T Philipp
BACKGROUND: Substance P (SP) is produced at high levels in the central nervous system (CNS), and its target receptor, neurokinin 1 receptor (NK-1R), is expressed by glia and leukocytes. This tachykinin functions to exacerbate inflammatory responses at peripheral sites. Moreover, SP/NK-1R interactions have recently been associated with severe neuroinflammation and neuronal damage. We have previously demonstrated that NK-1R antagonists can limit neuroinflammatory damage in a mouse model of bacterial meningitis...
February 15, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28199987/mir-34a-promotes-dcs-development-and-inhibits-their-function-on-t-cell-activation-by-targeting-wnt1
#10
Anfei Huang, Yi Yang, Si Chen, Fei Xia, Di Sun, Deyu Fang, Sidong Xiong, Liping Jin, Jinping Zhang
MicroRNAs serve important functions in numerous biological processes. Whether microRNAs also act on dendritic cell (DC) differentiation and function remains unclear. In this study, both conventional DCs (cDCs) and plasmacytoid DCs (pDCs) were increased in miR-34a overexpressing bone marrow chimeric and transgenic (TG) mice. Further experiments showed that miR-34a promoted preDC differentiated into cDCs and pDCs without affecting the proliferation and apoptosis of DCs. Luciferase report assay and Western blot experiments demonstrated that WNT1 is the direct target of miR-34a in DCs...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28199353/oral-administration-of-lactobacillus-paracasei-l9-attenuates-pm2-5-induced-enhancement-of-airway-hyperresponsiveness-and-allergic-airway-response-in-murine-model-of-asthma
#11
Xifan Wang, Yan Hui, Liang Zhao, Yanling Hao, Huiyuan Guo, Fazheng Ren
This study investigated allergy immunotherapy potential of Lactobacillus paracasei L9 to prevent or mitigate the particulate matter 2.5 (PM2.5) enhanced pre-existing asthma in mice. Firstly, we used a mouse model of asthma (a 21-day ovalbumin (OVA) sensitization and challenge model) followed by PM2.5 exposure twice on the same day of the last challenge. PM2.5 was collected from the urban area of Beijing and underwent analysis for metals and polycyclic aromatic hydrocarbon contents. The results showed that PM2...
2017: PloS One
https://www.readbyqxmd.com/read/28198408/therapeutic-effects-of-human-adipose-tissue-derived-stem-cell-hadsc-transplantation-on-experimental-autoimmune-encephalomyelitis-eae-mice
#12
Jia Li, Ying Chen, Zhibo Chen, Yuanyuan Huang, Dehao Yang, Zhongqian Su, Yiyun Weng, Xiang Li, Xu Zhang
This study is to investigate the therapeutic effects of human adipose tissue-derived stem cell (hADSC) transplantation on experimental autoimmune encephalomyelitis (EAE) in mice. EAE mouse model was established by MOG35-55 immunization. Body weight and neurological function were assessed. H&E and LFB staining was performed to evaluate histopathological changes. Flow cytometry was used to detect Th17 and Treg cells. ELISA and real-time PCR were performed to determine transcription factor and pro-inflammatory cytokine levels...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28198028/proinflammatory-chemokines-are-major-mediators-of-exuberant-immune-response-associated-with-influenza-a-h1n1-pdm09-virus-infection
#13
Maria Thomas, Reeta Subramaniam Mani, Mariamma Philip, Ranjeeta Adhikary, Sangeeta Joshi, Srigiri S Revadi, Shashidhar Buggi, Anita Desai, Ravi Vasanthapuram
In India, the case fatality ratio of the pandemic A (H1N1) pdm09 influenza was relatively higher when compared to seasonal influenza A infection. Hypercytokinemia or "cytokine storm" has been previously implicated in the pathogenesis of other influenza viruses. The present study was undertaken to compare the cytokine profiles of A (H1N1) pdm09 influenza and seasonal H3 infection in Indian population and to correlate the findings with disease severity. Plasma levels of 18 cytokines/chemokines were measured by flow-cytometry using a bead based assay in patients infected with A (H1N1) pdm09 virus (n = 96) and Influenza A seasonal H3 virus (n = 30) categorised into mild, moderate and severe groups along with healthy controls (n = 36)...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28197386/deficiency-of-the-immunostimulatory-cytokine-il-21-promotes-intestinal-neoplasia-via-dysregulation-of-the-th1-th17-axis
#14
Mia Shapiro, Bisweswar Nandi, Gabriel Gonzalez, Rao H Prabhala, Hiroshi Mashimo, Qin Huang, Natasha Y Frank, Nikhil C Munshi, Jason S Gold
IL-21 has reported activity in promoting both Th1 and Th17 immune responses. Its role in sporadic human colorectal cancer is unknown. We aimed to delineate the role of IL-21 in a model of sporadic intestinal carcinogenesis. We found that in APC(MIN/+) mice, ablation of IL-21 increased intestinal tumorigenesis. Expression of pro-inflammatory Th17-associated genes, including RORγt and IL-17A, was increased in the intestine in the absence of IL-21, while expression of antitumor Th1-associated genes Tbet, IFNγ, granzyme B, and perforin was decreased...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28194607/il-17a-monoclonal-antibody-partly-reverses-the-glucocorticoids-insensitivity-in-mice-exposed-to-ozonec
#15
Xia Fei, Peng-Yu Zhang, Xue Zhang, Guo-Qing Zhang, Wu-Ping Bao, Ying-Ying Zhang, Min Zhang, Xin Zhou
Exposure to ozone has been associated with airway inflammation and glucocorticoid insensitivity. This study aimed to observe the capacity of anti-murine interleukin-17A monoclonal antibody (IL-17mAb) to reverse ozone-induced glucocorticoid insensitivity and to detect its effects with glucocorticoids in protecting against airway inflammation. After C57/BL6 mice were exposed to ozone (2.5 ppm; 3 h) for 12 times over 6 weeks, PBS, IL-17mAb (50 ug/ml), dexamethasone (2 mg/kg), and combination administration of IL-17mAb (50 ug/ml) and dexamethasone (2 mg/kg) were intraperitoneally injected into mice at a dose of 0...
February 13, 2017: Inflammation
https://www.readbyqxmd.com/read/28192159/pegylation-prolongs-the-pulmonary-retention-of-an-anti-il-17a-fab-antibody-fragment-after-pulmonary-delivery-in-three-different-species
#16
Danielle Freches, Harshad P Patil, Maria Machado Franco, Catherine Uyttenhove, Sam Heywood, Rita Vanbever
The PEGylation of antibody fragments has been shown to greatly prolong their residence time in the lungs in mice. The purpose of this research was to confirm the effect of PEGylation in higher animal species, that is, the rat and the rabbit. An anti-IL-17A Fab' antibody fragment was conjugated to a two-armed 40kDa polyethylene glycol (PEG) via site-selective thiol PEGylation. PEGylation did not significantly alter the binding activity of the Fab' fragment but it largely enhanced its inhibitory potency. PEGylation increased the residence time of the Fab' in the lungs of mice, rats and rabbits...
February 9, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28190384/lactic-acid-bacteria-with-concomitant-il-17-il-23-and-tnf%C3%AE-binding-ability-for-the-treatment-of-inflammatory-bowel-disease
#17
Staša Kosler, Borut Štrukelj, Aleš Berlec
BACKGROUND: Neutralization of proinflammatory cytokines is an established strategy in the treatment of inflammatory bowel disease (IBD). Systemic anti-TNFα antibodies have been used in the clinics for several years, while anti-IL-17/IL-23 antibodies have been less successful so far. We report the development of safe lactic acid bacterium Lb. salivarius with the ability to simultaneously bind IL-17A, IL-23 and TNFα that could be administered orally for the treatment of IBD. METHODS: Three different cytokine-binding non-Ig scaffolds (anti-IL-17A fynomer, anti-IL-23-binding adnectin and anti-TNFα-binding affibody) were cloned and expressed in L...
10, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/28189042/activity-of-inflammatory-bowel-disease-influences-the-expression-of-cytokines-in-gingival-tissue
#18
C M Figueredo, A P Martins, R Lira-Junior, J B Menegat, A T Carvalho, R G Fischer, A Gustafsson
This study assessed the cytokine expression in gingival and intestinal tissues from periodontitis patients with inflammatory bowel disease (IBD) and evaluated if IBD activity is a covariate to the amount of gingival cytokines. Paired gingival and intestinal tissues were collected from 21 patients and homogenised using a cell disruptor. Cytokine expression (IL-1β, IL-4, IL-6, IL-10, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IL-17A, IL-17F, IFN-γ, sCD40L, and TNF-α) was evaluated using bead-based multiplex technology...
February 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28188344/skeletal-muscle-secretome-in-duchenne-muscular-dystrophy-a-pivotal-anti-inflammatory-role-of-adiponectin
#19
S Lecompte, M Abou-Samra, R Boursereau, L Noel, S M Brichard
BACKGROUND: Persistent inflammation exacerbates the progression of Duchenne muscular dystrophy (DMD). The hormone, adiponectin (ApN), which is decreased in the metabolic syndrome, exhibits anti-inflammatory properties on skeletal muscle and alleviates the dystrophic phenotype of mdx mice. Here, we investigate whether ApN retains its anti-inflammatory action in myotubes obtained from DMD patients. We unravel the underlying mechanisms by studying the secretome and the early events of ApN...
February 10, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28186427/meta-analysis-of-risk-association-between-interleukin-17a-and-f-gene-polymorphisms-and-inflammatory-diseases
#20
Ebrahim Eskandari-Nasab, Mehdi Moghadampour, Arezoo Tahmasebi
This meta-analysis examined the relationship between IL-17A (rs2275913) and IL17F (rs763780 T/C) gene polymorphisms and the risk of inflammatory diseases, including periodontitis, rheumatoid arthritis (RA), and inflammatory bowel disease. PubMed, MEDLINE, EMBASE, Web of Science, and Elsevier Science Direct were searched, and odds ratios (ORs) with 95% confidence interval (CI) were calculated to estimate the strength of the association. A total of 25 studies comprising 7,474 cases and 10,628 controls were included...
February 10, 2017: Journal of Interferon & Cytokine Research
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